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| => What do you think the exclamation mark indicates? | ||
| Force save the sorted array. |
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Yup, and one of the cooler things about this is that you can expand that analogy to many other functions. ! at the end of a method generally is used to indicate that the action is destructive (a.k.a. it changes) the original object.
array.map! would actually change array, whereas array.map would not.
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